Author(s): Kathryn Lasky
No. of Pages: 232 pages
Date Published: 24 Nov 2008
Publisher: Scholastic US
Format: Paperback | 232 pages
Dimensions: 132.08 x 187.96 x 20.32mm | 136.08g
Language: English
Publication City/Country: New York, United States
Edition:
Illustrations: Frontispiece; Maps; Illustrations, black and white

The final book in Lasky's best-selling animal series.
The strange, maniacal blue owl known as the Striga has been rousted from the Great Ga'Hoole Tree. Nyra, leader of the vicious Pure Ones, is either dead or laying low in some distant land, leaving the tree finally at peace. As if fed by an invisible spring, learning and the lively arts flourish at the great tree and spread throughout the owl kingdoms.
But unbeknowst to the Guardians, in a long-empty cave deep in the Northern Kingdoms two ruthless villains join forces to conjure an ancient evil, an evil that will do their bidding and wreak havoc on the world.